Having to film a sex scene can give even the most courageous actors some stage Racy and controversial director Lars von Trier has utilized unsimulated sex. Unsimulated sex is the presentation in a film of sex scenes where the actors engage in an actual sex act, and are not just miming or simulating the actions.‎Paris Théo & Hugo · ‎Gay Meets Girl · ‎Pasolini (film) · ‎Marfa Girl. This article talks about movies with unsimulated sex.